Chest pain is one of the most common reasons that people ages 15 and older visit the emergency room in the U.S. Chest pain varies from person to person. It may feel like a sharp, stabbing pain or a dull ache. While chest pain may be a sign of a se...

Vomiting is an uncontrollable reflex that expels the contents of the stomach through the mouth. It is also called being sick, or throwing up. Nausea is the term used to describe the feeling that you might vomit, but are not actually vomiting. Both...

Fatigue is a term used to to describe the general overall feeling of tiredness and/or a lack of energy. Other words that are sometimes used in place of fatigue include exhaustion, weariness, and lethargy. According to the National Institutes of He...

Sensations are carried from the extremities of the body to the brain via neurons in the spinal cord. If the blood supply to the nerves is decreased temporarily, it can produce the feeling that “my leg fell asleep”.